Hilarious How To guides

There's long been a market in self-improvement literature, but some How To guides cater to a truly niche audience. For instance, who out there has yearned to make their breasts larger through sheer mental ability alone? Bust Enlargement With Total Mind Power is the book for you. Fancy crafting your own bedroom accessories? Make Your Own Sex Toys contains diagrams for no less than 50 DIY accoutrements.

From pet communication to office defecation, here are our favourite oddball DIY reads. They're not mature, they're not highbrow but they sure are funny...

How To Speak Cat

"The ultimate, comprehensive, and authoritative guide to learning to speak "Cat""

By Alexandra Sellers

Natural bust enlargement with total mind power

"How to use the other 90% of your mind to increase the size of your breasts"